Gold Calculator
Estimate gold value by weight and purity using current market pricing. This tool is designed for general gold valuation, not just scrap.
Estimated value
$0.00
Price per gram
$65.00
Price per ounce
$2021.00
Estimated value depends on gold weight, purity, and the current market price.
How to Calculate Gold Value
A gold calculator combines weight, purity, and market price to estimate value. A gold value calculator starts with the spot price, applies your weight in grams or ounces, and then adjusts for karat purity to calculate gold value accurately.
When you calculate gold value, purity is the key multiplier. Higher karat gold contains more pure gold per gram, which directly increases the estimate.
Gold Price Per Gram vs Per Ounce
A gold price calculator can use either grams or ounces, depending on how your gold is weighed. Grams are common for jewelry, while ounces are standard for bullion. A gold worth calculator should always align the price unit with the weight unit to avoid errors.
Converting between units is simple: one troy ounce equals 31.1035 grams. Use that ratio when you move between per‑gram and per‑ounce prices.
Gold Purity Explained
Purity tells you how much of the item is gold. 24k is 100% pure, 22k is about 91.6%, 18k is 75%, 14k is 58.5%, and 10k is 41.7%. Lower karat gold is worth less per gram because more of the weight is alloy metal.
Always apply the correct purity percentage before comparing offers or resale values.
How to Estimate What Your Gold Is Worth
People use a gold calculator for jewelry appraisal, scrap gold estimates, and resale planning. For scrap scenarios, payout rates reduce the final offer, while resale estimates focus on metal content plus potential premiums.
Use our Scrap Gold Calculator or Check today’s gold price to ground your estimate in current pricing.
For karat-specific estimates, Check 14K gold value and Check 18K gold value.
FAQ
How do I calculate gold value?
Multiply weight by the price per gram or per ounce, then apply the purity percentage if the gold is not 24k.
What is a gold calculator?
A gold calculator estimates value based on weight, purity, and the current market price.
How much is gold worth per gram?
The per‑gram value depends on spot price and purity. Use the per‑gram price shown above and apply your karat percentage for an estimate.
How much is gold worth per ounce?
The per‑ounce value is the standard spot price for a troy ounce of gold. Use it with ounce weights for fast estimates.
Does gold purity affect value?
Yes. Higher purity means more gold content per gram, which increases value. Lower karat gold has more alloy and is worth less per gram.